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Microchip Technology AT25010-10PI-2.7
- Part No.:
- AT25010-10PI-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT25010-10PI-2.7.pdf
- Description:
- IC EEPROM 1KBIT SPI 3MHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,202
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Product details
Overview
AT25010-10PI-2.7 from Atmel (now Microchip) is a 1-Kbit SPI serial EEPROM organized as 128 words × 8 bits, operating from 2.7V to 5.5V with 3.0 MHz max clock rate at 5V, 8-byte page write capability, and hardware/software write protection via WP pin and status register. It serves in industrial control panels for parameter storage, battery-backed configuration retention, and firmware patch storage in space-constrained embedded systems.
For engineers reviewing the AT25010-10PI-2.7 datasheet, AT25010-10PI-2.7 pinout, AT25010-10PI-2.7 application, or AT25010-10PI-2.7 equivalent, key selection considerations include VCC range compatibility (2.7–5.5 V), PDIP-8 package footprint, SPI Mode 0/3 timing compliance, and block-level write protection granularity (1/4, 1/2, or full array).
Technical Context
The AT25010-10PI-2.7 implements a synchronous SPI slave interface with separate SI/SO pins, MSB-first data transfer, and no erase cycle required before write. Its internal architecture includes an 8-bit instruction register supporting WREN/WRDI/RDSR/WRSR/READ/WRITE op-codes and a nonvolatile status register with BP1/BP0 bits controlling block protection.
It features dual write-protection mechanisms: hardware-level inhibition via the active-low WP pin and software-configurable block protection through the status register. The HOLD pin enables serial communication suspension without resetting the sequence, and all write cycles are self-timed with ≤10 ms duration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1024 bits (128 × 8-bit words) - fixed capacity for compact configuration storage |
| Interface | SPI-compatible, Modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1) - interoperable with 68HC11, PIC, ARM Cortex-M SPI peripherals |
| Supply Voltage | 2.7 V to 5.5 V - supports both low-voltage microcontrollers and legacy 5 V systems without level shifting |
| Max Clock Frequency | 3.0 MHz at VCC = 5.0 V - enables fast read/write bursts within tight timing budgets |
| Write Cycle Time | ≤10 ms - deterministic programming latency for real-time system state capture |
| Endurance | 1 million write cycles - sufficient for daily calibration updates over 27+ years |
| Data Retention | 100 years at 25°C - ensures long-term reliability in unpowered storage applications |
Pinout & Package
AT25010-10PI-2.7 uses an 8-lead PDIP (0.300" wide, JEDEC MS-001 BA) package with 2.54 mm lead pitch, suitable for through-hole prototyping and industrial PCBs requiring mechanical robustness.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; device ignores SI and drives SO high-Z when CS is high |
| SCK | Serial Clock Input | Master-generated clock; timing defines setup/hold windows for SI/SO data sampling |
| SI | Serial Data Input | Receives op-code, address, and write data; MSB-first, sampled on SCK rising/falling edge per mode |
| SO | Serial Data Output | Drives read data and status bits; high-Z when CS high or during HOLD/active write |
| GND | Ground Reference | Return path for VCC and all I/O; must be low-impedance to minimize noise coupling into SPI lines |
| VCC | Power Supply | Single 2.7–5.5 V supply powering core logic and I/O buffers; decoupling capacitor required |
| WP | Write Protect | Hardware lock: low disables all writes regardless of status register or WREN state |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without resetting address counter; requires SCK low to assert |
Key Features
| Feature | Design Value |
|---|---|
| Page Write Mode | 8-byte burst writes reduce total programming time versus byte-by-byte writes |
| Block Write Protection | Configurable via status register to protect 1/4, 1/2, or entire memory array against accidental overwrite |
| Dual Write Protection | Simultaneous hardware (WP pin) and software (WRSR + WREN) enforcement prevents unauthorized writes |
| HOLD Functionality | Enables master CPU to service higher-priority interrupts mid-transfer without losing SPI context |
| Self-Timed Writes | No external timing control needed; internal logic manages tWC (≤10 ms), freeing MCU resources |
Applications
| Industrial Sensor Calibration Storage | Medical Device Configuration Backup |
|---|---|
Use Scenario: Storing factory-calibrated sensor offsets and gain coefficients in programmable logic controllers (PLCs) and distributed I/O modules. IC Role / Device Role / Timing Role: Nonvolatile parameter repository accessed during power-up initialization and field recalibration routines. Use Value: Enables traceable, field-updatable calibration without requiring external backup batteries or larger parallel EEPROMs. |
Use Scenario: Retaining user-selected therapy parameters and safety thresholds in portable infusion pumps and diagnostic monitors. IC Role / Device Role / Timing Role: Secure configuration store with hardware write lock (WP pin) preventing runtime corruption during critical operation. Use Value: Meets IEC 62304 Class B software requirements by ensuring immutable safety-critical settings across power cycles. |
| Automotive Body Control Module (BCM) | Smart Energy Meter Firmware Patch Storage |
Use Scenario: Holding door lock actuation counts, mirror position presets, and lighting profiles in 12 V automotive BCMs. IC Role / Device Role / Timing Role: Low-voltage (2.7–5.5 V) EEPROM interfacing directly with 3.3 V microcontroller SPI bus under cold-crank conditions. Use Value: Guarantees reliable operation down to 2.7 V during battery voltage sag, eliminating need for voltage supervisors or regulators. |
Use Scenario: Storing delta patches for firmware updates in utility-grade electricity meters deployed in remote substations. IC Role / Device Role / Timing Role: Field-programmable memory segment isolated via BP1/BP0 bits to prevent accidental overwrite of boot code. Use Value: Supports secure, incremental firmware upgrades over PLC or RF links without risking bricking the meter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95010-WMN6TP | Same 1 Kbit capacity, 2.5–5.5 V supply, but uses SPI Mode 0 only; 5 ms max write cycle; SOIC-8 only | Lacks HOLD pin and multi-mode SPI support; not pin-compatible with PDIP-8 layout of AT25010-10PI-2.7 | Select when board uses SOIC-8 and only Mode 0 SPI is available; verify HOLD functionality is unused. |
| 25AA010A-I/P | Microchip 1 Kbit SPI EEPROM with identical PDIP-8 package, 1.8–5.5 V range, and same pinout; supports Mode 0/3 | Higher endurance (4M cycles) and extended temp range (–40°C to +125°C); pin-to-pin compatible replacement | Drop-in upgrade path offering wider voltage range and automotive-grade reliability without PCB changes. |
Compared with AT25010-10PI-2.7, M95010-WMN6TP sacrifices HOLD and SPI mode flexibility for faster writes in SOIC-only designs, while 25AA010A-I/P delivers direct pin compatibility plus enhanced voltage tolerance and endurance-making it the preferred migration for new designs requiring extended lifecycle support.
Availability
AT25010-10PI-2.7 is available at Aetrix Electronics and suitable for industrial control systems, medical instrumentation, automotive body electronics, and smart metering applications requiring stable component supply across extended product lifecycles.
Supply support for AT25010-10PI-2.7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Atmel Corporation, now part of Microchip Technology, is a semiconductor company specializing in microcontrollers, nonvolatile memory, and security ICs for embedded systems.
The AT25010-10PI-2.7 belongs to Atmel's SPI Serial EEPROM product line, designed specifically for low-power, low-voltage embedded applications where reliable, byte-addressable nonvolatile storage is required in minimal board area.
FAQ
What is the maximum clock frequency supported by the AT25010-10PI-2.7?
The AT25010-10PI-2.7 supports up to 3.0 MHz SCK frequency when operated at VCC = 5.0 V. At lower supply voltages (2.7–4.5 V), the maximum clock rate is 2.1 MHz per AC characteristics table. This timing constraint ensures reliable setup/hold margins for SI/SO data sampling and must be observed in MCU SPI peripheral configuration.
Does the AT25010-10PI-2.7 require an external erase command before writing?
No, the AT25010-10PI-2.7 does not require a separate erase cycle before write operations. All programming is performed in-place: the WRITE instruction automatically overwrites target bytes without prior erasure. This simplifies firmware implementation and reduces total write latency compared to flash-based alternatives.
How does the Write Protect (WP) pin interact with the status register protection bits?
The WP pin provides unconditional hardware-level write inhibition: when pulled low, it overrides all software-based protections and blocks all write instructions (WRITE, WRSR, WREN) regardless of BP1/BP0 or WEN bit states. Only when WP is high can status register settings take effect, enabling selective block protection.
Can the AT25010-10PI-2.7 be used in automotive applications?
Yes - the AT25010-10PI-2.7 is offered in automotive-grade variants (e.g., AT25010-10PI-2.7A) qualified to AEC-Q100 standards, with operating temperature range extended to –40°C to +125°C. The standard industrial version (–40°C to +85°C) is suitable for cabin electronics but not under-hood environments.
What happens to the SO pin during a write cycle or when HOLD is asserted?
During an internal write cycle or when HOLD is low, the SO pin enters high-impedance (high-Z) state and ceases driving data. This prevents bus contention and allows other SPI slaves to share the same SO line. Normal output resumes after write completion or when HOLD is de-asserted with SCK low.
AT25010-10PI-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 1Kbit
- Memory Organization:
- 128 x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 3 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT25010-10PI-2.7 FAQ
1.How can I place an order for AT25010-10PI-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25010-10PI-2.7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AT25010-10PI-2.7 reliable?
The price and inventory of AT25010-10PI-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25010-10PI-2.7 is usually 5 days.
3.What payment methods are accepted for AT25010-10PI-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25010-10PI-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25010-10PI-2.7?
AT25010-10PI-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25010-10PI-2.7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AT25010-10PI-2.7?
For technical support, including AT25010-10PI-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25010-10PI-2.7 requirements.
6.How does Aetrix verify that AT25010-10PI-2.7 is sourced from the original manufacturer or authorized distributors?
All AT25010-10PI-2.7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AT25010-10PI-2.7 meets industry standards.
7.What is the process for return or replacement of AT25010-10PI-2.7?
All AT25010-10PI-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT25010-10PI-2.7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AT25010-10PI-2.7 part is unused and in its original packaging.
Return procedure for AT25010-10PI-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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